Coiling device



T. BENSON COILING DEVICE Oct. 31, 1950 Filed Dec.

INVENTOR. 7770/7745 Benson Patented Oct. 31, I

1 UNITED STATES PATENT OFFICE 2,527,518 1 COILING DEVICE Thomas Benson, Elm Park, N. Y. Application December 11, 1945 ,Serial No. 634,341 2Claims. (arise-e7) (Granted under the act of March a, 1883, as

amended April 30, 1928'; 370 0.'G-. '757)f ffThisinvention relates to a coiling device, and has for an object to provide a device for accurately and smoothly coiling or looping pipes, tubes, rods and the like.

Another object of this invention is to provide a coiling device of extreme simplicity of construction and operation.

A further object of this invention is to provide a portable coiling device, easily set up and manually operable.

Further objects and advantages of this invention, as well as its construction, arrangement and operation, will be apparent from the following description and claims in connection with the accompanying drawing, in which,

Fig. 1 is a plan view of a device embodying the principles of this invention;

Fig. 2 is a front elevation of the device of Fig. 1;

Fig. 3 is a side elevation of the device of Fig. 1;

Fig. 4 is a front elevation of the device shown upon completion of the coiling of a tube; and

Fig. 5 is a section taken on the line 55 of Fig. 2.

As shown in the drawing, the device comprises a pivot stud II, centrally mounted upon and extending from a base plate I2. Enclosing and rotatably mounted on stud II is a tubular form I3, the top end of which can be closed and provided with a handle I4. The lower end of form I3 is cut to spiral or helical shape, the ends of the lower surface being joined by ofiset portion I5, substantially parallel to the axis of form I3.

The helical lower end of form I3 rests upon a wedge I6, extending from base plate I2 adjacent pivot stud ll. side of form l3, and a guide cleat I8 extends upwardly from base plate I2. Grip cleat I1 and guide cleat I8 are arranged and disposed to be substantially adjacent and in operative alignment when offset portion I5 adjoins wedge I6. Attachment means can be provided to facilitate anchoring the device to a work table, such as stud I 9 projecting from the lower surface of base plate I2.

The device is utilized in the following manner; The device is afiixed to a stable work platform in any convenient location, as by means of stud I9. With the device in the position shown in the drawings, with olTset portion I5 adjoining wedge I6 and with cleats I! and I8 in adjacency and operative alignment, a length of tube or rod to be coiled is inserted under and through the cleats I! and I8. If a straight end projecting from the coil is desired, it can be provided by allowing the desired length to extend beyond grip cleat IT.

A grip cleat IT projects from the Form I3 is then caused to rotate relative to pivot stud II by means of handle I4. It will be apparent that relative rotation is possible in but one direction, that separating offset portion I5 from wedge I6 and separating grip cleat I! from guide cleat I8. The rotation of form I3 will cause the work to be gripped by grip cleat I1 and to be bent about form I3, the work being pulled through guide cleat I8.

Upon rotation relative to pivot stud II, form I3 will be caused to advance longitudinally with respect to pivot stud II and thereby become spaced from base plate I2 by the action of the lower helical end of form I3 bearing upon wedge I6. This action coils the workpiece 20 at a lead or pitch, enabling formation of a perfect coil of constant diameter. Upon the completion of substantially one complete revolution, as shown in Fig. 4, form I3 will have advanced substantially the length of offset portion I5, enabling grip cleat I! to clear guide cleat I8. When more than one revolution has been completed, and ofiset portion I5 has passed wedge I6, the form I3 will be maintained in its proper longitudinal position with respect to guide cleat I8 by the already coiled portion of the workpiece. The coiling can then be carried out to any extent desired by merely continuing to rotate handle I 4, the length of coil that can be attained being limited only by the length of form I3 between grip cleat I1 and its lower helical end. This length, it will be apparent, can be made as great as desired.

The form I3 can be shaped to give any desired inside coil diameter and coil length, and cleats I1 and I8 are desirably shaped to conform to the outer diameter of the workpieces intended to be operated upon. In the embodiment illustrated in the drawings when a coil of adjacent loops is desired, the length of offset portion I5 is desirably made equal to the outside diameter of the workpieces.

Various modifications and changes can be made in the subject device without departing from the scope of the invention.

The invention described herein may be manufactured and used by or for the Government 01 the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

I claim:

1. A coiling device comprising a platform, a stud extending from said platform, a tubular form rotatably mounted on said stud, the end of said form adjacent said platform being of helical shape, a handle on the opposite end of said form,

a wedge on said platform adjacent said stud, said wedge being positioned and adapted to bear upon the helical end of said form, a guide cleat extending from said platform, and agrip cleat extending from said form, said grip cleat being positioned to be in adjacency and operative alignment with said guide cleat when said form is in a position of maximum proximity to said platform.

2. A coiling device comprising a platform, a 10 stud extending from said platform, a tubular pipe form rotatably mounted on said stud, the end of said form adjacent said platform being. of helical shape, a wedge on said platform adjacent said stud, a surface of said wedge being positioned and adapted to bear upon the helical end surface of said form, a guide cleat extending from said platform, and a grip CIGEt'GXtEDdP ing from said form, said grip cleat being posi.- tioned to be in adjacency and operative alignment with said guide cleat when said form is: in atposition of maximum proximity to said platform.

' 4 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 159,232 Trethewey Jan. 26, 1875 296,269 Beaman Apr. 1, 1884 725,026 Boehm Apr. 14, 1903 744,018 Aiken Nov. 17, 1903 797,331 Stambaugh Aug. 15, 1905 805,231 Pembroke Nov. 21, 1905 834,220 Aiken Oct. 23, 1906 1,258,271 Tillman Mar. 5, 1918 1,358,938 Danglemeyer Nov. 16, 1920 1,505,347 Hoyt Aug. 19, 1924 1,831,777 Nunamaker Nov. 10, 1931 FOREIGN PATENTS Number Country Date 497,182 France Sept. 4, 1919 548,686 Great Britain Oct. 20, 1942 

